Bug 1679975 (CVE-2019-8955)

Summary: CVE-2019-8955 tor: memory exhaustion in the KIST cell scheduler resulting in denial of service
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: jamielinux, lewk, mh, pwouters, rh-bugzilla, s
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: tor Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-10 10:48:45 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1679976, 1679977    
Bug Blocks:    

Description Dhananjay Arunesh 2019-02-22 11:49:27 UTC
In Tor before, 0.3.4.x before, 0.3.5.x before, and 0.4.x before, remote denial of service against Tor clients and relays can occur via memory exhaustion in the KIST cell scheduler.


Comment 1 Dhananjay Arunesh 2019-02-22 11:55:21 UTC
Created tor tracking bugs for this issue:

Affects: fedora-all [bug 1679976]

Comment 2 Dhananjay Arunesh 2019-02-22 11:55:42 UTC
Created tor tracking bugs for this issue:

Affects: epel-7 [bug 1679977]

Comment 3 Product Security DevOps Team 2019-06-10 10:48:45 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.